Chapter 3. Getting Started
18 | ADTS 405 R/F Mk2 Instruction Manual-English
© 2017 General Electric Company – All Rights Reserved.
3.2.3 Units of Measure
When operating, in either pressure measure or pressure control modes, the ADTS 405 Mk2
can display the following unit information:
Table 3-1: Aeronautical Units of Measure
Aeronautical Function
Display Abbreviation
Displayed Units
Altitude
ALT
ft, m
Calibrated and True Airspeed
CAS, TAS
kts, km/h, mph
Mach
MACH
-
Rate of Climb
ROC
ft/m, m/m, m/s, hm/m
Rate of Airspeed
Rt CAS,
kts/m, km/h/m, mph/m
Rate of Mach
RtMCH
Mach/m
Table 3-2: Pressure Units of Measure
Pressure Function
Display Abbreviation
Displayed Units
a
a. Where [P] is the currently selected pressure units from the following list: mbar, inHg, mmHg, inH
2
O (4°C),
inH
2
O (20°C), psi, hPa, kPa, inH
2
O (60°F), kg/cm
2
or %FS.
Static (Absolute)
Ps
[P]
Pitot (Absolute)
Pt
[P]
Dynamic or Impact (Differential)
Qc
[P]
Engine Pressure Ratio
EPR
-
Rate of Ps
Rt Ps
[P]/m
Rate of Pt
RtPt
[P]/m
Rate of Qc
Rt Qc
[P]/m
Rate of EPR
Rt EPR
EPR/m